[Modes lighting] The modes state: Continuous light - Continuous light timer - intermittent light - off [stopwatch mode] It has the humanized timer function. When you press the stopwatch button, the light will flash once, which indicates that the configuration is correct. In this case, the fairy lamp will automatically turn on for 4 hours and go out for 20 hours a day. However, the premise of this case is to stop adjusting the product, if not, the stopwatch function will end. [Safety and stability] Low consumption, high efficiency. The LED light chain does not heat up long after the use of several hours. In addition, it works with less electricity. The silver tape 5 meters long. 3 AA batteries (excluded)